Ultegra134

Hello, I am new to BikeForums.I'd Like your opinion about about which one I should use.Is there a difference between them?Why Should I choose Tubular glue?Why should I not an so on.
Please explain which one.I just ordered my tubular wheelset and I'd like to know

chaulky61

Glue - Tubs are great - ride much better than clinchers so you might as do it right. The pro's use glue for a reason

Ultegra134

I am worried about that issue.I don't want something like that below to happen.(I covered the riders' faces for typical reasons)
For some reason the tire unmounted the wheel.I bet you guess what happened next.Does anyone know what might caused it?

BoSoxYacht

that is more likely to happen with clinchers than with a tubular, in the situation in the photo.

FBinNY 

The tire in question probably rolled because of low pressure (slow leak?) rather than a glue failure.

It's the tire pressure that holds a tire on, with the adhesive's main job being to keep it from shifting or creeping around the rim with torque (usually driving force in the rear, and braking force in the front).

Tubulars are made with 2 bias plies at 90 degrees from each other. When inflated they work like those Chinese finger traps we played with as children. The pressure acts on them to make them fatter, which makes them try to become shorter and constrict into the hollow of the rim. That's what holds them on.

There may also be the effects of heat on hot pavement, and/or heat from braking. This can weaken the glue bond, causing the tire to creep around when braking, and create a slack area near the valve. This isn't a hazard to casual riders because it announces itself with clear thumping (and an obviously tilted valve stem), but a racer may choose to disregard it in the heat of competition leading to a nasty surprise.

As to glue vs. tape, either is fine if of decent quality and used properly. The key is a good bond, or tack, and a base coat on new rims to ensure good adhesion to the metal. For non racers good, durable tackiness is preferable to a dry glue bond. This makes it easier to change tires on the road, and can allow the replacement to be mounted and ridden immediately. Racers don't care about this anymore, because they haven't carried spares since the days of Fausto Coppi, and will rely on team or neutral support to switch out the wheel.

With any degree of reasonable care, you should ride a lifetime without ever rolling a tire.

surgeonstone

Glue.

Fox Farm

So, I will say tape. I have used both for about 15 years and although I have no problem with applying glue, I find tape to be simple, easy to use, and ridable immediately, not 24 hours after the glue has had time to set up. I use Tufo tape and their tubular tires.

gsa103

Tape has higher rolling resistance than glue.

Either glue, or ride a different wheel. If you're using tape, you're probably better off using tubeless clinchers or clinchers with latex tubes.

I <3 Robots

Never used tape...so I'm saying glue. Just don't use too much...or you'll have a heck of a time pulling them off.

JohnDThompson 

This.

If reducing rolling resistance is the driving factor for you, use glue. For convenience, use tape.

hueyhoolihan

so what's the deal? you guys think people are putting tape on the OUTSIDE of the tire?

gsa103

The theory is that the tape is thicker and flexes more than a thin glue layer.

NormanF

Unless you're racing, clinchers are good enough for training and every day rides. There is no longer a reason to run tubulars since the clincher technology has improved so much.

big chainring 

Tubulars are reserved for those who possess, for lack of better terminology, the force. They require long tedious hours of glueing rim and tire, building up layers of tack, then days to cure. Mounting the tires are best left to mystics and shaman. The average cyclist is best to steer away from these beastly sewn carcasses.

Or, you can do as I do. Get yourself some 3M trim adhesive from the auto parts store, smear it on the rim, put the tire in the rim, inflate, and by the time you put your jumper on, you're set to ride.

BoSoxYacht

Are there any tests that prove this theory?

asgelle

loads

BoSoxYacht

Show it.

asgelle

https://www.google.com Look, don't look; it really doesn't matter to me.

gsa103

Crr Comparison - Mastik 1 vs. Tufo Extreme Tape

Here's the best actual measurement I was able to find. Lots of anecdotal evidence. Most of the evidence is based on analogy to thick vs thin glue layers, and the hardness of the glue.

The big chart here has incorporated the data above.

https://www.biketechreview.com/tires_...sting_rev9.pdf

The Crr was 0.00239 (glued) vs 0.00260 (Tufo Extreme). 0.00239 is one of the lower rolling resistance tires. 0.00260 is an average "racing" clincher with latex tube. So basically, you take of the best tires, and turn it into an average tire. It will be definitively better than a clincher + butyl tube, but also behind most tubeless tires.

BoSoxYacht

I'm not the one saying rolling resistance is increased with tape, so it's not my responsibility to back up my claim with facts

asgelle

Where in the five letters, one word I posted do you find me making any claims one way or another? Like I wrote, whether you choose to educate yourself or not is of no concern to me.

BoSoxYacht

You say "loads" in response to my question, so I thought you could back up this statement.

I guess not.

asgelle

Brer Rabbit's eyes got very large. "Oh please Brer Fox, whatever you do, please don't throw me into the briar patch."

big chainring 

I was fairly good with Elmer's. When I was introduced to rubber cement, my world changed.

popeye

Yes it is. You challenged his statement and it's up to you to prove it. Unfortunately for you Zinn does not agree.

"Tubulars attached to rims using gluing tape will inherently have even higher losses than a standard gluing since the thickness of glue is greater and the tape in the middle also contributes a hysteretic loss."